Review on Citphto Controller Universal Electronic Regulator by Ryan Brunson

I used this to power the rear fan on my minivan. I have a solar system and run off my house batteries. I had to use a multimeter to determine which wires went where, but once I did it was very easy to hook up. This causes my fan to make a very high pitched sound when not running at full power, but I guess that's just the nature of PWM motor controllers. I think it will be good as most likely I just want to use it to its full potential.